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2 years ago

If a = 4, Evaluate 35 - 3a

Mathematics

2 answers:

e-lub [12.9K]2 years ago

8 0

Answer:

a=4

35-3a=

35-3(4)=

35- 12=23

Step-by-step explanation:

Aloiza [94]2 years ago

6 0

Answer:

Step-by-step explanation:

3 times 4 equals 12

then do

35 minus 12

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Greeley [361]

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6 0

2 years ago

A store buys a shirt from their distributor for $15. Then they markup the price by 80%. How much is the store selling the shirt

andrew-mc [135]

Answer:

$18.75

Step-by-step explanation:

Change the 80% into its decimal form, which is 0.8. Then, divide $15 by 0.8.

7 0

2 years ago

Consider a bell-shaped symmetric distribution with mean of 16 and standard deviation of 1.5. Approximately what percentage of da

fredd [130]

Answer: 95.45 %

Step-by-step explanation:

Given : The distribution is bell shaped , then the distribution must be normal distribution.

Mean : $\mu=\ 16$

Standard deviation : $\sigma= 1.5$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x = 13

$z=\dfrac{13-16}{1.5}=-2$

For x = 19

$z=\dfrac{19-16}{1.5}=2$

The p-value = $P(-2$

$0.9772498-0.0227501=0.9544997\approx0.9545$

In percent, $0.9545\times100=95.45\%$

Hence, the percentage of data lie between 13 and 19 = 95.45 %

6 0

2 years ago

What is the value of 30-2(7+2)-1

Firdavs [7]

Answer: 11

Step-by-step explanation:

30 - 2(7+2)- 1 Distribute or solve parentheses

30 - 14 -4 - 1

30 - 19 = 11

6 0

3 years ago

A parabola has zeros at (5,0) and (-3,0) and passes through point (6,18) determine the axis of symmetry

worty [1.4K]

Answer:

The axis of symmetry is $x=1$

Step-by-step explanation:

we know that

In a vertical parabola, the axis of symmetry is equal to the x-coordinate of the vertex

In this problem we have a vertical parabola open upward

The x-coordinate of the vertex is equal to the midpoint between the zeros of the parabola

$x=\frac{5-3}{2}=1$

therefore

The axis of symmetry is $x=1$

5 0

2 years ago